Heater



FIG. 1 is a front, top, right perspective view of a first embodiment of a heater showing my design;

FIG. 2 is a rear, bottom, left perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a right side elevation view thereof;

FIG. 9 is an enlarged perspective view of the portion of the heater circled in FIG. 1;

FIG. 10 is a front, top, right perspective view of a second embodiment of a heater showing my design;

FIG. 11 is a rear, bottom, left perspective view thereof;

FIG. 12 is a front elevation view thereof;

FIG. 13 is a rear elevation view thereof;

FIG. 14 is a top plan view thereof;

FIG. 15 is a bottom plan view thereof;

FIG. 16 is a left side elevation view thereof;

FIG. 17 is a right side elevation view thereof;

FIG. 18 is an enlarged perspective view of the portion of the heater circled in FIG. 10;

FIG. 19 is a front, top, right perspective view of a third embodiment of a heater showing my design;

FIG. 20 is a rear, bottom, left perspective view thereof;

FIG. 21 is a front elevation view thereof;

FIG. 22 is a rear elevation view thereof;

FIG. 23 is a top plan view thereof;

FIG. 24 is a bottom plan view thereof;

FIG. 25 is a left side elevation view thereof;

FIG. 26 is a right side elevation view thereof;

FIG. 27 is an enlarged perspective view of the portion of the heater circled in FIG. 19;

FIG. 28 is a front, top, right perspective view of a fourth embodiment of a heater showing my design;

FIG. 29 is a rear, bottom, left perspective view thereof;

FIG. 30 is a front elevation view thereof;

FIG. 31 is a rear elevation view thereof;

FIG. 32 is a top plan view thereof;

FIG. 33 is a bottom plan view thereof;

FIG. 34 is a left side elevation view thereof;

FIG. 35 is a right side elevation view thereof; and,

FIG. 36 is an enlarged perspective view of the portion of the heater circled in FIG. 28.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a heater, as shown and described. 